DRAINAGE SYSTEM AND LOESS DISTRIBUTION OF EASTERN IOWA

Hydrologic impacts of tile drainage in Iowa

ii ACKNOWLEDGMENTS I would like to acknowledge the following for completion of this thesis: God for giving me the patience, guidance and strength to succeed in this research. I am so grateful for everything I have been given and everything I was able to do. Without God I can do nothing. Dr. Nandita Basu for challenging and guiding me throughout graduate school and this research. I have grown an...

Grape production and distribution in Western Iowa

Abundance and distribution of western and northern corn rootworm (Diabrotica spp.) and prevalence of rotation resistance in eastern Iowa.

The western corn rootworm Diabrotica virgifera virgifera LeConte (Coleoptera: Chrysomelidae) and the northern corn rootworm Diabrotica barberi Smith & Lawrence (Coleoptera: Chrysomelidae) are major pests of corn (Zea mays L.). Historically, crop rotation has been an effective management strategy, but both species have adapted to crop rotation in the Midwest. For both species in eastern Iowa, we...

Distribution map of the different lithologic units in loess plateau of eastern Golestan by using remote sensing technique; Aghband research area

Introduction: Along with the climate, Soil is an essential natural resource. Although soil studies in Iran have been started more than 50 years ago, the soil map of the country has not been fully prepared yet, and only 20-25% of the lands have been mapped already. Many soil maps of Iran need to be updated, but the common methods in soil mapping are costly and time-consuming. Hence, using data o...

Radon Measurements in Houses in Eastern and Central Iowa